Transurethral lithotripsy with holmium-YAG laser of a large exogenous prostatic calculus. 2011

Masanori Hasegawa, and Rei Ohara, and Kent Kanao, and Yosuke Nakajima
Department of Urology, Saiseikai Kanagawa-ken Hospital, 6-6, Tomiya-tyo, Kanagawa-ku, Yokohama, Kanagawa, 221-0821, Japan. hasem@sky.plala.or.jp

Prostatic calculi are classified into two types, endogenous and exogenous calculi, based on their origin. Endogenous calculi are commonly observed in elderly men; however, exogenous prostatic calculi are extremely rare. We report here the case of a 51-year-old man who suffered incontinence and pollakiuria with a giant exogenous prostatic calculus almost completely replacing the prostatic tissue. X-rays and computed tomography demonstrated a large calculus of 65 × 58 mm in the small pelvic cavity. The patient underwent a transurethral lithotripsy with a holmium-YAG laser and a total of 85 g of disintegrated stones was retrieved and chemical stone analysis revealed the presence of magnesium ammonium phosphate. The incontinence improved and the voiding volume increased dramatically, and no stone recurrence in the prostatic fossa occurred at the 2 years follow-up. The etiology of this stone formation seemed to be based on some exogenous pathways combined with urinary stasis and chronic urinary infection due to compression fracture of the lumbar vertebra.

UI MeSH Term Description Entries
D008279 Magnetic Resonance Imaging Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques. Chemical Shift Imaging,MR Tomography,MRI Scans,MRI, Functional,Magnetic Resonance Image,Magnetic Resonance Imaging, Functional,Magnetization Transfer Contrast Imaging,NMR Imaging,NMR Tomography,Tomography, NMR,Tomography, Proton Spin,fMRI,Functional Magnetic Resonance Imaging,Imaging, Chemical Shift,Proton Spin Tomography,Spin Echo Imaging,Steady-State Free Precession MRI,Tomography, MR,Zeugmatography,Chemical Shift Imagings,Echo Imaging, Spin,Echo Imagings, Spin,Functional MRI,Functional MRIs,Image, Magnetic Resonance,Imaging, Magnetic Resonance,Imaging, NMR,Imaging, Spin Echo,Imagings, Chemical Shift,Imagings, Spin Echo,MRI Scan,MRIs, Functional,Magnetic Resonance Images,Resonance Image, Magnetic,Scan, MRI,Scans, MRI,Shift Imaging, Chemical,Shift Imagings, Chemical,Spin Echo Imagings,Steady State Free Precession MRI
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011469 Prostatic Diseases Pathological processes involving the PROSTATE or its component tissues. Disease, Prostatic,Diseases, Prostatic,Prostatic Disease
D002137 Calculi An abnormal concretion occurring mostly in the urinary and biliary tracts, usually composed of mineral salts. Also called stones. Biliary or Urinary Stones,Calculus
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014057 Tomography, X-Ray Computed Tomography using x-ray transmission and a computer algorithm to reconstruct the image. CAT Scan, X-Ray,CT Scan, X-Ray,Cine-CT,Computerized Tomography, X-Ray,Electron Beam Computed Tomography,Tomodensitometry,Tomography, Transmission Computed,X-Ray Tomography, Computed,CAT Scan, X Ray,CT X Ray,Computed Tomography, X-Ray,Computed X Ray Tomography,Computerized Tomography, X Ray,Electron Beam Tomography,Tomography, X Ray Computed,Tomography, X-Ray Computer Assisted,Tomography, X-Ray Computerized,Tomography, X-Ray Computerized Axial,Tomography, Xray Computed,X Ray Computerized Tomography,X Ray Tomography, Computed,X-Ray Computer Assisted Tomography,X-Ray Computerized Axial Tomography,Beam Tomography, Electron,CAT Scans, X-Ray,CT Scan, X Ray,CT Scans, X-Ray,CT X Rays,Cine CT,Computed Tomography, Transmission,Computed Tomography, X Ray,Computed Tomography, Xray,Computed X-Ray Tomography,Scan, X-Ray CAT,Scan, X-Ray CT,Scans, X-Ray CAT,Scans, X-Ray CT,Tomographies, Computed X-Ray,Tomography, Computed X-Ray,Tomography, Electron Beam,Tomography, X Ray Computer Assisted,Tomography, X Ray Computerized,Tomography, X Ray Computerized Axial,Transmission Computed Tomography,X Ray Computer Assisted Tomography,X Ray Computerized Axial Tomography,X Ray, CT,X Rays, CT,X-Ray CAT Scan,X-Ray CAT Scans,X-Ray CT Scan,X-Ray CT Scans,X-Ray Computed Tomography,X-Ray Computerized Tomography,Xray Computed Tomography
D017602 Lithotripsy, Laser Fragmentation of CALCULI, notably urinary or biliary, by LASER. Laser Lithotripsy,Laser-Induced Shockwave Lithotripsy,Shockwave Lithotripsy, Laser-Induced,Laser Induced Shockwave Lithotripsy,Lithotripsies, Laser,Lithotripsy, Laser-Induced Shockwave,Shockwave Lithotripsy, Laser Induced
D053844 Lasers, Solid-State Lasers which use a solid, as opposed to a liquid or gas, as the lasing medium. Common materials used are crystals, such as YAG (YTTRIUM aluminum garnet); alexandrite; and CORUNDUM, doped with a rare earth element such as a NEODYMIUM; ERBIUM; or HOLMIUM. The output is sometimes additionally modified by addition of non-linear optical materials such as potassium titanyl phosphate crystal, which for example is used with neodymium YAG lasers to convert the output light to the visible range. Alexandrite Laser,Alexandrite Lasers,Diode Pumped Solid State Laser,Diode Pumped Solid State Lasers,Er-YAG Laser,Er-YAG Lasers,Erbium Doped Yttrium Aluminum Garnet Laser,Erbium YAG Laser,Erbium-Doped Yttrium Aluminum Garnet Laser,Erbium-Doped Yttrium Aluminum Garnet Lasers,Ho YAG Laser,Ho YAG Lasers,Holmium Doped Yttrium Aluminum Garnet Lasers,Holmium Laser,Holmium-YAG Laser,Holmium-YAG Lasers,KTP Laser,Laser, Nd-YAG,Nd-YAG Laser,Nd-YAG Lasers,Neodymium-Doped Yttrium Aluminum Garnet Laser,Neodymium-Doped Yttrium Aluminum Garnet Lasers,Potassium Titanyl Phosphate Laser,Ruby Laser,Ruby Lasers,Solid-State Laser,YAG Laser,YAG Lasers,YLF Laser,YLF Lasers,YSGG Laser,YSGG Lasers,Yttrium Aluminum Garnet Laser,Yttrium-Lithium-Fluoride Laser,Yttrium-Lithium-Fluoride Lasers,Yttrium-Scandium-Gallium Garnet Laser,Yttrium-Scandium-Gallium Garnet Lasers,Erbium YAG Lasers,Holmium Lasers,KTP Lasers,Lasers, Alexandrite,Lasers, Diode Pumped Solid State,Lasers, Er-YAG,Lasers, Erbium-Doped Yttrium Aluminum Garnet,Lasers, Ho-YAG,Lasers, Holmium Doped Yttrium Aluminum Garnet,Lasers, Nd-YAG,Lasers, Neodymium-Doped Yttrium Aluminum Garnet,Lasers, Ruby,Lasers, YAG,Lasers, Yttrium Aluminum Garnet,Lasers, Yttrium-Lithium-Fluoride,Potassium Titanyl Phosphate Lasers,Yttrium Aluminum Garnet Lasers,Er YAG Laser,Er YAG Lasers,Erbium Doped Yttrium Aluminum Garnet Lasers,Ho-YAG Laser,Ho-YAG Lasers,Holmium YAG Laser,Holmium YAG Lasers,Laser, Alexandrite,Laser, Er-YAG,Laser, Erbium YAG,Laser, Ho YAG,Laser, Ho-YAG,Laser, Holmium,Laser, Holmium-YAG,Laser, KTP,Laser, Nd YAG,Laser, Ruby,Laser, Solid-State,Laser, YAG,Laser, YLF,Laser, YSGG,Laser, Yttrium-Lithium-Fluoride,Laser, Yttrium-Scandium-Gallium Garnet,Lasers, Er YAG,Lasers, Erbium Doped Yttrium Aluminum Garnet,Lasers, Erbium YAG,Lasers, Ho YAG,Lasers, Holmium,Lasers, Holmium-YAG,Lasers, KTP,Lasers, Nd YAG,Lasers, Neodymium Doped Yttrium Aluminum Garnet,Lasers, Solid State,Lasers, YLF,Lasers, YSGG,Lasers, Yttrium Lithium Fluoride,Lasers, Yttrium-Scandium-Gallium Garnet,Nd YAG Laser,Nd YAG Lasers,Neodymium Doped Yttrium Aluminum Garnet Laser,Neodymium Doped Yttrium Aluminum Garnet Lasers,Solid State Laser,Solid-State Lasers,YAG Laser, Erbium,YAG Laser, Ho,YAG Lasers, Erbium,YAG Lasers, Ho,Yttrium Lithium Fluoride Laser,Yttrium Lithium Fluoride Lasers,Yttrium Scandium Gallium Garnet Laser,Yttrium Scandium Gallium Garnet Lasers

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